intel 8293

Abstract: intel 8291 12 17 â¡ BUS5 BUS2C 13 16 â¡ BUS4 GND C 14 15 â¡ BUS3 Figure 1. 8291, 8292, 8293 Block Diagram , to indicate that the 8292 is in charge of the bus. CIC is a TTL compatible input. Pin Description , it has been recognized by the 8292. Normally low (except after a hardware reset), it will be pulsed , indicates that this 8292 is in charge. ATNO is a TTL compatible input. tfTNi 11 0 Attention In: Processor , ; used in conjunction with ATN by the active controller (the 8292) to execute a polling sequence. This